Contribution #710

Problem: ru/2.3.9

Added 2.3.4 2.3.5 2.3.6 2.3.7 2.3.8 2.3.9 2.3.10

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: November 27, 2023 at 11:55 AM

GitHub commit: 25dcda13ab95d5dd31bf72a4087e1365072e792c

+177 -0 lines changed